<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>getJSON()获取数据</title>
    <meta name="viewport" content="width=device-width, initial-scale=1"> 
    <script src="js/jquery-1.12.4.js"></script>
</head>
<body>
    <div id="showTestMsg">使用getJSON()获取数据</div>
    <!--<div id="showTestMsg">bill yooh 50</div>-->
    <input type="button" id="btn1" value="获取JSON数据">
</body>
</html>